Opener for the valves of inner air tubes of pneumatic tires



Jan. 27, 1931. G. ANTANAITIS 1,790, 7

dPENER FOR THE VALVES 0F "INNER AIR TUBES 0F PNEUMATIC TIRES 7 Filed No v..v 10-, 1923- Patented Jan. 27, 1931 r i. 7 7 o Hire: isrfras "roars GEORGE ANTANAITIS, or Momv'r oAEMEL, PENNSYLVANIA orENEaroE TH VALVES F INJSTEE AIR TUEEs oErNEUMArio TIRES Application filed November 10, 1928. Serial No. 318,372.

This invention relates to improvements in "Within sleeve 10 and" longitudinally extools or devices for opening the air Valves 01 tending. thereto is slidably held a guide memthe inner tubes ofpneumatic tires, and. it is her .16 having a head 17 and a body semithe principal object of my invention to procircular in cross-section provided withalon- I vide' a device of this character which is gitudina-lslot 18, and a shoulder 19 offset at .55

equipped with a spring controlled member the side'opposite'to the slotted wall and endfor. operating the stem of the air valve, and ing in. an open, nearly circular opening 20-" with a locking device forsaid member which Within the guidelmember 16, a rack-guide can readily be released. 21 for a rack 22 is slidably guided the rear Another object of my invention is the pro' facev of which is engaging the slot 18 in mem- 60 vision of a device of this character equipped ber 16,. while its head part '23x-is elongated, j with a sliding rack and guide adapted to be andits foot part 24 is hook-shaped as indiengaged by a pawl, while the upward IIlOV- cated in Figure5', and carries on its underside ment of the sliding guide under the action of an operating member 25 for thestem 13 of an i a spring is limited by suitable means. air valve, for the inner'tube of a pneumatic 65 Y These and other-objects and advantages of tire-.. A spring 26 is woundabout said-memmy device will become more fully. known her and rests with its lower end on an inner when the description proceeds, and will then shoulder 27 0f thesocke't 1'1.

be specifically pointed out in the appended] A pawl holder 28 is adapted to snugly en- 1 o i a clai gage with its upper end a shoulder 2901? the V 70 In. the accompanying drawlng, formlng a guide 21, while its lower end rests on the material part of this disclosure: upperface of pawl 24:,and its wall, which is f Fig. 1 is a side elevation of a tool consemi-circularly curved in cross-section, en- 3 structed according to my inventlon, 1n longlgages the front face of guide 21.

i 25 tudinal section. The rear wall of the holder 28 is slotted, as 7 r Fig. 2 is a fragmentary front elevation of at 30, in the slot aipawl 31 is pivoted intermea sleeve in longitudinal section, and an end diate its ends, as at 32. Thehead of the pawl elevation thereof. has an inner recess 33 adapted to. gripover Fig. 3 is a sectional side elevation of a guide and engage a bar 34 integrally made with the member for the pawl holder. holder 28, while the lower end of the pawl 80 Fig. 4 is an end view thereof. engages the rack 22 and is held in engage- Fig. 5 is a side elevation of a rack guide. ment therewith by means of a spring .35. The Fig. 6 is a front elevation, of the device. f head of the pawl 31 projects through plug 14 Fig. 7 is a front elevation of the pawl of the sleeve 10, while a transverse pin 36 is holder. passed through bore 15 and openings 20 and 8 Fig. 8 is a side elevation thereof. 37 limits the upward movement of the guide As illustrated, the novel and improved de- 21 and keeps spring 35 compressed.

vice for opening the'air valves of theinner The operation of my device will be entirely tubes of pneumatic tires, comprises a sleeve clear from the above description andby in- Q 10 having a lower socket 11 integrally made spection of the drawing, and it will be evi- 9 therewith, provided with inner thread adaptdent, that upon depression of the sliding ed to engage theupper outwardly threaded guide 21 and compression of spring 35, the nipple 12 of the tire air valve containing the member 25 will engage the stem 13 of the usual pin or stem 13 for the inner air tube valve for the inner tube of a pneumatic tire located therein and usually employed to let and depress the same to open the valve, while the air out of an inner tube. the head 34 of pawl 31 projects through the Near its upper end the sleeve 10 has an opening 14 in sleeve 10 andthus locks the opening 14: therein, and intermediate its ends parts in their operating position with the 50 a transverse bore 15, both for purposes later lower end of the pawl inengagem'ent with the to be more fully described. rack. When a lateral pressure is exerted on P pawl 31, .to push its head into sleeve 10 through opening 14 thereof its lower end will come free from the rack and the spring can now expand again to push guide 21 again into position for a new operation.

It will be understood that I have described and shown the preferred form of my invention only and that I may make such changes therein as some within the scope of the appended claims without materially departing from my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

In a'tire defiator including an outer perforated sleeve engagingithe air nipple of the tire, a rack, a holder for said rack, said holder liaving a longitudinally extending slot in which said rack is displaceably guided, a low er spring controlled stem formed with said holder adapted to engage the stem of-the air valve for the inner tube of said tire, a pawl normally projecting through the perforation in said'sleeve and engaging said rack, and adapted to be'disengaged therefrom upon inward pressure exerted on" its projecting part, to allow an expansion of the spring for disengaging stem of the holder from the inner tube valve stem;

Signed at Mount Carmel, in the county of North Cumberland and State of Pennsyl- Vania,A.-D."1928. i

V GEORGE ANTANAITIS. 

